Actuator



FIG. 1 is a front perspective view of my design for an actuator fromabove and one side;

FIG. 2 is a front view;

FIG. 3 is a rear view;

FIG. 4 is a side view;

FIG. 5 is a view of other side; and,

FIG. 6 is a plan view.

I claim the ornamental design for an actuator, as shown and described.